Volent current, , iming. Current, electric energy, accumulated electric energyCan reset and confirm and have -down memory functionRated frequency: 45-65HzInstructions:Click the "" button on the panel to view the current energy and accumulated energy. Energy and timing reset : Press and hold the button for 5 seconds, the number in the timing area will flash, and then click the button to select the timing, current energy and accumulated energy reset. When the number flashes, double-click the button to reset. Press and hold the button for 5 seconds to save the setting.Model: AC300-10AVoltage: AC50-300VCurrent: 0-10A: 0-3000WCapacity: 0.01-19999KwhTiming: 0-200HTemperature: -10 Celsius to 99 CelsiusColour: BlackMaterial: PlasticPackage Contents:4 x Voltmeter4 x English ManualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.